Display screen or portion thereof with a graphical user interface



The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.

The FIGURE is a front view of a display screen or portion thereof with a graphical user interface showing our new design.

The two outermost broken lines from the graphical user interface illustrate the display screen. The remaining broken lines illustrate portions of the graphical user interface that form no part of the claimed design. None of the broken lines form part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with a graphical user interface, substantially as shown and described. 